Have 07 H3 with sunroof, it's a must have, has never leaked or given any dramas.

Congratulations on your purchase, I still love my H3 as much as the day I bought it, great car.

 

I would be interested to know how many H3's are not equipped with a sun roof. When I was looking for my Alpha a couple of years ago the dealer had about 40 different H3's on the lot and I believe every single one of them had a sun roof.

I did think this was odd becasue if I recall correctly it was a fairly expensive ($800.00) option when the Hummers were new.

 

I thought the sun roof was a standard fitment on H3's, seems that way in Australia anyway.

Even $800 is cheap mate, a basic sunroof added to a sedan here is about $2000-2500.

 

Drill out the 'X' shaped ends of the front drain tubes where they go into the firewall and you'll never have a leak. There's a couple threads on this site showing the process. Less than an hour job total and you don't need to disassemble anything.

Post up some pics when you get your new rig!

 

No sunroof on mine it was the one thing I wanted but didn't get!